Kranzle quadro 1500 TS, Operating Manual

Page: 13 / 52

13
Kränzle technology
Water and Cleaning System
The water must be lead to the high pressure cleaner under pressure (2 – 8 bar admissi-
on pressure). A float valve regulates the water inlet. Then, the water is sucked by the
high pressure pump from the water tank and supplied to the lance under the set pressu-
re. The high pressure jet is formed by the nozzle at the end of the lance.
Bypassing the water tank enables the cleaner to suck in water directly from a pres-
sureless container. (see page 20)
Environmental, refuse disposal and water protection
regulations must be observed!
Lance with trigger gun
The machine can only be operated when the safety trigger is squeezed. When the lever
is squeezed, the spray gun opens. The liquid is then pumped to the nozzle. The spray
pressure increases and quickly reaches the selected operating pressure. When the
trigger is released, the gun closes and any further spraying of liquid from the lance is
stopped. The pressure gauge must show 0 bar.
The increase in pressure when the spray gun is closed causes the pressure control
valve-safety valve to open. The motor is switched off by the pressure switch. When the
spray gun is opened, the pressure control valve - safety valve closes, the motor is
started and the pump resumes pressure spraying from the lance with the selected
operating pressure.
The spray gun is a safety device. Repairs should only be
performed by qualified persons. Should replacement
parts be required, use only components authorized by the
manufacturer.
Pressure control valve - safety valve
The pressure control valve - safety valve protects the machine from a build up of
excess pressure, and is designed not to permit an excess pressure to be selected for
operation. The limit nut on the handle is sealed with a spray coating. The operating
pressure and spray rate can be steplessly adjusted by turning the handle.
Replacements, repairs, new adjustments and sealing
should only be performed by qualified persons.